Fetal head circumference at 23 weeks of pregnancy

Every time you go for a prenatal check-up during pregnancy, seeing every change in the fetus will bring parents a lot of surprises and touches. The fetus changes very quickly during pregnancy, for example, the child's head circumference changes very obviously every week. At 23 weeks of mid-pregnancy, the fetal head circumference is approximately 209 mm. There is also a reference standard table for the fetal head circumference at different times. During each prenatal check-up, you can simply check whether the fetus is developing normally.

What is the standard for head circumference during pregnancy?

12 weeks of pregnancy: fetal head circumference is about 56mm

13 weeks of pregnancy: fetal head circumference is about 72mm

14 weeks of pregnancy: fetal head circumference is about 89mm

15 weeks of pregnancy: fetal head circumference is about 105mm

16 weeks of pregnancy: fetal head circumference is about 120mm

17 weeks of pregnancy: fetal head circumference is about 135mm

18 weeks of pregnancy: fetal head circumference is about 149mm

19 weeks of pregnancy: fetal head circumference is about 162mm

20 weeks of pregnancy: fetal head circumference is about 175mm

21 weeks of pregnancy: fetal head circumference is about 187mm

22 weeks of pregnancy: fetal head circumference is about 198mm

23 weeks of pregnancy: fetal head circumference is about 209mm

24 weeks of pregnancy: fetal head circumference is about 220mm

25 weeks of pregnancy: fetal head circumference is about 230mm

26 weeks of pregnancy: fetal head circumference is about 239mm

What are the causes of large head circumference?

The cause of increased head circumference is congenital thickening of the cerebral cortex or proliferation of glial cells, which causes abnormal enlargement of the brain. In clinical practice, it is found that the main cause of increased head circumference in children is hydrocephalus. This excessive increase in water is medically called cerebrospinal fluid. The basic characteristic of hydrocephalus is the intracranial high pressure caused by excessive cerebrospinal fluid, which expands the normal intracranial space. If all this happens before the child's cranial sutures are fused, an increase in head circumference is the most prominent feature.

Fetal head circumference is small

It’s okay if the fetus is small for one to two weeks. This is normal and pregnant mothers don’t need to worry. Generally speaking, doctors will recommend that you pay attention to rest, avoid overwork, and eat more nutritious foods to promote the growth and development of the fetus. However, you should be careful not to increase your weight too much in a short period of time, as this is not conducive to a normal delivery. Therefore, pregnant mothers should not supplement too much or too much nutrition.